chr6-31025670-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001395414.1(MUC22):​c.239C>T​(p.Thr80Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,533,170 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000049 ( 1 hom. )

Consequence

MUC22
NM_001395414.1 missense

Scores

1
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0270
Variant links:
Genes affected
MUC22 (HGNC:39755): (mucin 22) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.033866197).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MUC22NM_001395414.1 linkuse as main transcriptc.239C>T p.Thr80Ile missense_variant 2/4 ENST00000561890.1
MUC22NM_001318484.1 linkuse as main transcriptc.248C>T p.Thr83Ile missense_variant 3/5
MUC22NM_001198815.1 linkuse as main transcriptc.239C>T p.Thr80Ile missense_variant 3/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MUC22ENST00000561890.1 linkuse as main transcriptc.239C>T p.Thr80Ile missense_variant 2/42 NM_001395414.1 P1

Frequencies

GnomAD3 genomes
AF:
0.0000527
AC:
8
AN:
151844
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00155
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000856
AC:
11
AN:
128492
Hom.:
0
AF XY:
0.0000570
AC XY:
4
AN XY:
70232
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00105
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000492
AC:
68
AN:
1381326
Hom.:
1
Cov.:
76
AF XY:
0.0000499
AC XY:
34
AN XY:
681548
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000281
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00186
Gnomad4 SAS exome
AF:
0.0000127
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000527
AC:
8
AN:
151844
Hom.:
0
Cov.:
31
AF XY:
0.0000539
AC XY:
4
AN XY:
74172
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00155
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 03, 2021The c.239C>T (p.T80I) alteration is located in exon 3 (coding exon 2) of the MUC22 gene. This alteration results from a C to T substitution at nucleotide position 239, causing the threonine (T) at amino acid position 80 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
8.6
DANN
Benign
0.44
DEOGEN2
Benign
0.0027
T
FATHMM_MKL
Benign
0.058
N
LIST_S2
Benign
0.53
T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.034
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.61
N
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.18
T
Vest4
0.17
MVP
0.17
GERP RS
1.1
Varity_R
0.059
gMVP
0.031

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1202998013; hg19: chr6-30993447; API